Title:
１，４−シクロヘキサンジカルボン酸ジクロリドの製造方法
Document Type and Number:
Japanese Patent JP6738018
Kind Code:
B2
Abstract:
Provided is 1,4-cyclohexanedicarboxylic acid dichloride containing few acidic gas components and predominantly containing cis isomers, which are industrially easy to handle. A method for preparing 1,4-cyclohexanedicarboxylic acid dichloride includes reacting 1,4-cyclohexanedicarboxylic acid containing at least 60% cis isomers with thionyl chloride. The 1,4-cyclohexanedicarboxylic acid dichloride contains at least 50% cis isomers, and the 1,4-cyclohexanedicarboxylic acid dichloride contains acidic gas in an amount of 1.0% by weight or less.
Inventors:
Kazuki Sugawara
Ken Nishikawa
Ken Nishikawa
Application Number:
JP2016178486A
Publication Date:
August 12, 2020
Filing Date:
September 13, 2016
Export Citation:
Assignee:
Toray Fine Chemicals Co., Ltd.
International Classes:
C07C51/60; C07C61/09
Domestic Patent References:
| JP2015172036A | ||||
| JP2014185119A | ||||
| JP3128368A | ||||
| JP2006249039A |
Foreign References:
| WO2016030277A1 | ||||
| CN105367407A |
Attorney, Agent or Firm:
Ichijo power